Ideas for future improvements

### Overview
This is a collection of ideas for future improvements. Some of these depend on web platform features that are not yet widely supported, so they are gathered here for tracking rather than filed as individual issues.
### Ideas

#### Ordering:
- [ ] **`reading-flow` CSS property:** Once the [`reading-flow`](https://developer.mozilla.org/en-US/docs/Web/CSS/reading-flow) CSS property has wider browser support beyond Chrome, add it as a reference to the Reading Order annotations.
- [ ] **tab roving reference:** Add a link to the [Roving tabindex](https://nik.digital/posts/tab-roving) pattern as a resource in the Ordering documentation.

#### System Feedback:
- [ ] **Live Regions: ARIA Notify API:** Once the [ARIA Notify API](https://github.com/nicolo-ribaudo/tc39-proposal-aria-notify) is available, consider adding stamps and labels for it. These could be prepped ahead of availability.

Comece revisando a documentação existente sobre Reading Order e System Feedback ou os pontos de entrada de anotações; esta issue não menciona arquivos nem testes. Verifique a disponibilidade dos recursos vinculados sobre reading-flow, roving tabindex e ARIA Notify antes de adicionar as referências, marcações ou labels aplicáveis.

Escrita pelo modelo de indexação a partir do texto da issue.